水力压裂理论模型及数值计算方法综述

Review on Theoretical Model and Numerical Methods of Hydraulic Fracturing

通过用两套方程描述水力压裂过程中涉及到的岩石变形、裂缝扩展以及流体流动与滤失等力学问题,介绍了有限元法、扩展有限元法、边界元法、离散元法这四种常规数值计算方法的基本原理、研究现状,分析了各个方法的优缺点和适用范围。

By using two sets of equations to describe the rock deformation,fracture propagation,fluid flow and fluid loss and other mechanical problems involved in the hydraulic fracturing process,four types of finite element method,extended finite element method,boundary element method,and discrete element method are introduced.The basic principles and research status of conventional numerical calculation methods are analyzed,and the advantages and disadvantages of each method and the scope of application are analyzed.